<template>
  <div v-loading="loading" :style="{width}" class="editor-container ql-snow" element-loading-text="插入中,请稍候...">
    <quill-editor
      v-model="editorValue"
      :ref="'editor'+ index"
      :id="'editor'+ index"
      :options="quillOption"
      accept="image/gif,image/jpeg,image/jpg,image/png,image/svg"
      class="quill-edito">
    </quill-editor>
    <el-upload
      ref="upload"
      :with-credentials="true"
      :show-file-list="false"
      :action="uploadAction"
      :before-upload="beforeUpload"
      :data="itemForm"
      :on-success="uploadSuccess"
      accept="image/*"
      style="display: none;">
      <el-button :id="'imgInput'+index" size="small">点击上传</el-button>
    </el-upload>
    <!-- :data="uploadData" :name="uploadName" :headers="headers" -->
  </div>
</template>

<script>
import 'quill/dist/quill.core.css';
import 'quill/dist/quill.snow.css';
import 'quill/dist/quill.bubble.css';

import { quillEditor } from 'vue-quill-editor';
import { sources } from 'quill';
import quillConfig from './quill-config.js';
import { baseUrl }  from '@/utils/env.js';

export default {
  components: {
    quillEditor
  },
  props: {
    index: {
      type: Number,
      default: 1
    },
    // 用于接收v-model的值
    value: {
      type: String,
      default: ''
    },
    // 配置选项
    options: {
      type: Object,
      default: () => ({
        placeholder: '请输入内容',
        height: '100%',
        modules: {
          toolbar: [
            ['bold', 'italic', 'underline', 'strike'], // 加粗 斜体 下划线 删除线
            ['blockquote', 'code-block'], // 引用  代码块
            [{ header: 1 }, { header: 2 }], // 1、2 级标题
            [{ list: 'ordered' }, { list: 'bullet' }], // 有序、无序列表
            [{ script: 'sub' }, { script: 'super' }], // 上标/下标
            [{ indent: '-1' }, { indent: '+1' }], // 缩进
            // [{'direction': 'rtl'}],                         // 文本方向
            [{ size: ['small', false, 'large', 'huge'] }], // 字体大小
            [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
            [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
            [{ font: [] }], // 字体种类
            [{ align: [] }], // 对齐方式
            [{ 'clean': '源码编辑' }], // 清除文本格式
            ['link', 'image', 'video'] // 链接、图片、视频
            // ['bold', 'italic', 'underline', 'strike', { 'font': [] }, { 'size': ['small', false, 'large', 'huge'] }],
            // ['link', 'blockquote', 'image'],
            // [{ 'list': 'ordered' }, { 'list': 'bullet' }, { 'align': '' }, { 'align': 'right' }, { 'align': 'center' }, { 'align': 'justify' }]
          ]
        }
      })
    },
    // 上传图片的地址
    uploadAction: {
      type: String,
      default: ''
    },
    // 上传图片的字段名
    uploadName: {
      type: String,
      default: ''
    },
    // 上传图片要传递的参数
    uploadData: {
      type: Object,
      default() {
        return {};
      }
    },
    // 宽度
    width: {
      type: String,
      default: '700px'
    },
    // 高度
    height: {
      type: String,
      default: '300px',
    }
  },
  data() {
    return {
      // 富文本的内容
      editorValue: this.value,
      // 上传图片时的loading
      loading: false,
      headers: {
        Accept: 'application/json, text/javascript, */*; q=0.01',
        'X-Requested-With': 'XMLHttpRequest'
      },
      quillOption: quillConfig,
      baseUrl: baseUrl,
      itemForm: {
        limit: false
      },
    };
  },
  watch: {
    value(val) {
      console.log('val', val);
      this.editorValue = val;
    },
    editorValue(val) {
      this.$emit('input', val);
    }
  },
  mounted() {
    quillConfig.initButton(this.index);
    // 页面加载完成后，为编辑器的图片图标绑定点击事件
    this.$refs[`editor${this.index}`].quill.getModule('toolbar').addHandler('image', this.imgHandler);
  },
  methods: {
    // 点击图片ICON触发事件
    imgHandler(state) {
      if (state) {
        const fileInput = document.getElementById(`imgInput${this.index}`);
        fileInput.click();// 触发上传按钮
      }
    },
    // 上传前的回调
    beforeUpload(file) {
      this.loading = true;
      const isLt50M = file.size / 1024 / 1024 < 50;
      if (!isLt50M) {
        this.$message.error('上传图片大小不能超过 50MB!');
        return false;
      }
      return isLt50M;
    },
    // 上传成功，插入到编辑器中
    uploadSuccess(response, file, fileList) {
      console.log(response);
      if (response.code == 0) {
        this.loading = false;
        const imgUrl = response.data;
        if (imgUrl && imgUrl.length > 0) {
          const addRange = this.$refs[`editor${this.index}`].quill.getSelection();
          this.$refs[`editor${this.index}`].quill.insertEmbed(addRange !== null ? addRange.index : 0, 'image', this.baseUrl + imgUrl, sources.USER);
        } else {
          this.$message.error('插入失败');
        }
      } else {
        this.$message.error('上传失败');
      }
    },
    // 上传失败
    uploadError() {
      this.loading = false;
      this.$message.error('插入失败');
    }
  }
};
</script>

<style lang="scss">
.editor-container {
  .quill-editor {
    width: 100%;
  }
}
.ql-container{
  height: 220px;
}
.ql-editor{
  min-height: 220px;
}
.ql-snow .ql-picker-label::before {
    position: absolute;
}
.ql-snow .ql-tooltip[data-mode=link]::before {
  content: "请输入链接地址:";
}
.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
    border-right: 0px;
    content: '保存';
    padding-right: 0px;
}

.ql-snow .ql-tooltip[data-mode=video]::before {
    content: "请输入视频地址:";
}

.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
  content: '14px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=small]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=small]::before {
  content: '10px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=large]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=large]::before {
  content: '18px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=huge]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=huge]::before {
  content: '32px';
}

.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
  content: '文本';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
  content: '标题1';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
  content: '标题2';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
  content: '标题3';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
  content: '标题4';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
  content: '标题5';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
  content: '标题6';
}

.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
  content: '标准字体';
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=serif]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=serif]::before {
  content: '衬线字体';
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=monospace]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=monospace]::before {
  content: '等宽字体';
}
</style>
